Land area
Land of the Gros Ventre and Mandan in North Dakota, ceded 1891 (area 712)
- 1891
Ceded to the United States
The 1899 record: “Confirms agreement with these Indians by which they cede to the U. S. that part of their Fort Berthold reservation lying N. of the forty-eighth parallel”
In the record
Ceded by the Gros Ventre and Mandan in an agreement confirmed in March 1891: the parts of the Fort Berthold reservation north of the 48th parallel and west of a set line. The area covers about 1.5 million acres in what is now North Dakota.
The 1899 record names Gros Ventre (Aaniiih) and Mandan as the people of this land.
Today, Fort Belknap Indian Community of the Fort Belknap Reservation of Montana and Three Affiliated Tribes of the Fort Berthold Reservation, North Dakota carry the history of the people named here.
Written from the records linked here; open any of them for its sources.
Shapes come from C. C. Royce’s 1899 maps as georeferenced by the US Forest Service. They are approximate and are not legal descriptions of land. Royce recorded land the United States treated as ceded; the shape does not show a nation’s territory.
Who is doing the work
Land return and Native-led work nearby
- Native Governance Center Native-led Strengthening Native nation governance and capacity to exercise sovereignty Give on their site Website
Native legal and land defense, nationally
- Native American Rights Fund (NARF) Native-led Litigation and legal advocacy for tribal sovereignty, treaty rights, land and resources Give on their site Website
- NDN Collective (LANDBACK Campaign) Native-led LANDBACK campaign (launched 2020; Mount Rushmore closure and return of Black Hills public lands), Indigenous… Give on their site Website
- Indian Land Tenure Foundation (ILTF) Native-led Land recovery and control by tribes and individual Indian landowners Website
- Decolonizing Wealth Project (Indigenous Earth Fund; California Tribal Land Return) Native-led Reparative philanthropy Give on their site Website
Gifts go straight to each organization; this atlas takes nothing. Listing is not endorsement: how organizations are listed.
Connections
Links marked “suggested” were matched automatically by name or date and have not yet been reviewed by a person.
Nations named for this land 4
- Fort Belknap Indian Community of the Fort Belknap Reservation of Montanamatched by the Forest Service, under reviewsuggested
- Gros Ventre (Aaniiih)as named in the 1899 recordsuggested
- Mandanas named in the 1899 recordsuggested
- Three Affiliated Tribes of the Fort Berthold Reservation, North Dakotamatched by the Forest Service, under reviewsuggested
Located in 1
Sources
The record’s fields
- Area number in the 1899 record
- 712
- Dates in the 1899 record
- 1891-03-03
- Kind of instrument
- Act of Congress
- Peoples as named in the 1899 record
- Gros Ventre; Mandan
- States
- ND
- Counties
- McKenzie; Mountrail; Ward
- Map sheets in the 1899 record
- Dakota 3
- Geometry
- Approximate shape from Royce’s 1899 maps
Research notes
geometry_role is 'cession' for every USFS feature: no field in the source distinguishes cessions from reservations.
- Kind
- Land area
- Confidence
- Medium